Buk-M1 (9K37M1) is a modernized version, designed to attack air targets with a hit probability for targets for fighter size from 0.8 to 0.95, helicopetrs "Cobra" type 0.6 – 0.7 and 0.3 to 0.4 helicopters in suspension.

The system can aslo engage targets like UAV, aircrafts of tactical and strategic aviation, regular ballistic missiles, guided missiles air-to-ground and air-to-surface in conditions of electronic countermeasures.

The main difference is the organization interface with other subsystems of the missile defense system. Moreover, launcher 9A310 carries up to four missiles (instead of 3 of the launcher 9A38).

The preparation time for a launch after changing position is 20 sec, while the standby time is no more than 5 min. The filling of the loading vehicle is 16 min or 12 min from the vehicle LLU – mobile launch unit.